Hollow tubular sulfur-doped carbon nitride/graphite-phase carbon nitride homojunction photocatalyst, and preparation method and application thereof
A graphite phase carbon nitride and photocatalyst technology, applied in the field of photocatalysis, can solve the problems of fast photogenerated electron-hole recombination, low light utilization efficiency, poor photocatalytic performance, etc. , The effect of accelerating the separation efficiency
Pending Publication Date: 2020-05-22
湖南大隆环境科技有限公司
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Abstract
The invention discloses a hollow tubular sulfur-doped carbon nitride/graphite-phase carbon nitride homojunction photocatalyst, and a preparation method and application thereof. The photocatalyst takeshollow tubular sulfur-doped carbon nitride as a carrier; graphite-phase carbon nitride is loaded on the hollow tubular sulfur-doped carbon nitride; and the hollow tubular sulfur-doped carbon nitrideand the graphite-phase carbon nitride form a homojunction. The preparation method comprises the following steps: mixing and stirring melamine and trithiocyanuric acid, carrying out a hydrothermal reaction to obtain a solid tubular melamine/trithiocyanuric acid compound, modifying the surface of the solid tubular melamine/trithiocyanuric acid compound with urea, and carrying out calcining to obtainthe product. The hollow tubular sulfur-doped carbon nitride/graphite-phase carbon nitride homojunction photocatalyst can efficiently degrade tetracycline hydrochloride or tetracycline-containing wastewater with a pH value of 2-11, and has the advantages of high light absorption capacity, low photo-induced electron-hole recombination rate, good photocatalytic performance, good stability, applicability to a wide pH scope and the like.
Application Domain
Physical/chemical process catalystsWater/sewage treatment by irradiation +3
Technology Topic
PolythiocyanogenPhoto catalysis +9
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